Here is the English translation of the text you provided:

In 1974, the model series was updated and the color scheme was changed. The green was now lighter, and the body was dark purple. In 1978, the body color changed to dark gray and the rims to silver. Torque figures were improved to the level of 11-13%.

The 6006 was replaced by the 6206. The transmission was the same 8+4 TW 50 as in the smaller models. The main gears were synchronized, but the range gears, including the reverse gear, were not. An optional 9th gear was available, enabling a speed of 30 km/h. The lifting capacity was initially smaller than before at 2000 kg, but in later models increased to 2400 kg.

A new intermediate model was the 6806, which was technically equivalent to the 7206 but more compact in size. From 1978 onward, these models featured a fully synchronized 12+4 transmission.

Starting with the 6806, the cab was flat-floored and gear levers located on the dashboard. The front tires of the four-wheel-drive models were smaller than before. The four-wheel-drive models featured hydrostatic steering. From 1976 on, starting with the 6206, a factory-installed Special cab was available. Also from 1976 onwards, a front axle limited-slip differential was an optional feature on the 8006.

This is an automated translation. Please report any issues in the translation.